2results about How to "Unified security" patented technology

The application provides a track topology mapping, positioning and predictive control method and system based on electrical load fingerprints, which comprises the following steps: acquiring motor armature voltage signals and motor armature current signals of a motor driving device in real time; estimating the real-time rotating speed of the motor according to the motor armature voltage signals and the motor armature current signals, and time-integrating the real-time rotating speed to obtain real-time virtual mileage; mapping the motor armature current signals in the time domain to the virtual mileage coordinate system to form the motor armature current signals in the space domain, and taking the motor armature current signals in the space domain as the current load characteristic signals; performing sequence matching on the current load characteristic signals and the reference load fingerprint atlas to determine the absolute position of the motor driving device on the track; acquiring the road section characteristics within the predetermined virtual mileage ahead from the reference load fingerprint atlas according to the absolute position; and generating predictive safety instructions if the road section characteristics indicate that the area ahead is a high-load risk area. The application enhances the position sensing and intelligent control functions.

This utility model relates to the field of tables and benches, and in particular to a tea-brewing table and bench, comprising a table body including a tabletop and a first support frame located below the tabletop. A hole is provided at the center of the tabletop. The first support frame is a ring-shaped support frame with a vertical projected area smaller than the projected area of ​​the tabletop. A functional compartment, installed in the hole, is either a storage basket or a stove body. The stove body includes the functional compartment and an induction cooker or charcoal stove that can rotate 180° around a horizontal axis, installed inside the functional compartment. Through the synergistic effect of the hourglass-shaped structure of the ring support frame (a combination of first rings with diameters increasing and decreasing from bottom to top) and the rotating stove body mechanism (a functional compartment with a limiting groove and a T-shaped block mounting bracket), structural stability is ensured while providing legroom that conforms to the user's sitting posture curve. The largest diameter ring is precisely positioned within the ankle height range.